Question

part 3 of 3
iron(ii) sulfate (containing the fe²⁺ ion and so₄²⁻ ion)
name
empirical formula

Explanation:

Step1: Balance charges

The iron(II) ion is $\text{Fe}^{2 + }$ and the sulfate ion is $\text{SO}_{4}^{2 - }$. The charges of the cation and anion are equal in magnitude but opposite in sign. So, they combine in a 1:1 ratio.

Step2: Write empirical formula

Based on the 1:1 ratio, the empirical formula of iron(II) sulfate is $\text{FeSO}_{4}$.

Answer:

Name: Iron(II) sulfate
Empirical formula: $\text{FeSO}_{4}$